In a Japanese dojo, a muscular mistress trains her submissives in the art of pleasure and pain. She pits two men against each other in a brutal fight, the winner to claim her tight cunt, the loser to serve her every desire. The room echoes with grunts and moans as she rides one man's face, smothering him with her powerful thighs, and forces the other to worship her pussy with his tongue, her muscles tensing as she dominates them both.